In mammals, the ____ is a temporary center for the formation of blood cells.
A) amnion
B) allantois
C) yolk sac
D) chorion
E) archenteron
Correct Answer:
Verified
Q49: The embryo becomes implanted in the endometrium
Q50: Place the following in developmental order beginning
Q51: The trophoblast secretes _, which signals the
Q52: Which structure is the most immediate precursor
Q53: Monozygotic twins
A) occur when two eggs are
Q55: Briefly explain the relationship between nuclear equivalence
Q56: A teratogen is a drug that
A) increases
Q57: The first breath of the neonate is
Q58: Figure 51-3 Q59: In humans, the allantois
A) stores embryonic nitrogenous
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents